1816924560 has 240 divisors, whose sum is σ = 6428213568. Its totient is φ = 420992000.

The previous prime is 1816924523. The next prime is 1816924561. The reversal of 1816924560 is 654296181.

It is a tau number, because it is divible by the number of its divisors (240).

It is not an unprimeable number, because it can be changed into a prime (1816924561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1395910 + ... + 1397210.

Almost surely, 2^1816924560 is an apocalyptic number.

1816924560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1816924560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3214106784).

1816924560 is an abundant number, since it is smaller than the sum of its proper divisors (4611289008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1816924560 is a wasteful number, since it uses less digits than its factorization.

1816924560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374 (or 1345 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 1816924560 is about 42625.3980626574. The cubic root of 1816924560 is about 1220.2410524315.

The spelling of 1816924560 in words is "one billion, eight hundred sixteen million, nine hundred twenty-four thousand, five hundred sixty".